000 00299nam a22000977a 4500
008 230919b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
245 _aScientific world
260 _aLondon:
_bWorld Federation of Scientific Workers,
942 _2udc
_cCR
999 _c61182
_d61182